Long list of issues with CP5 project

I've been working on a project for the past few weeks and its nearing completion. A couple of things have happened which seem to have completely messed up the project. On the surface all looks well but when you actually use it, major usability issues emerge. I've listed the problems below. Would appreciate any advice if possible. Am using CP5 (latest update applied) on an XP pc.

1. Throughout the project development I've been publishing to html to test it. All was working fine until I decided to trial a scorm export. When I selected Quiz Preferences to enable scorm reporting, CP locked up. I was then presented with the top strip of the Preferences menu window with the rest missing. This was a blue strip which ran right across the screen and onto my second monitor. I couldn't close it or escape it, or select anything beneath. So I had to force quit, no choice really.

2. After the force quit I restarted CP and managed to enable scorm reporting. I tested an export (to zip), deployed on my Moodle site and all worked fine. I then noticed I needed to change a few details so went ahead and made these (all I added was a title for the scorm manifest). When I exported again, I ran into problems with my embedded flv videos, saying they were corrupt (which they weren't). I eventually got round this by exporting the zip to its own folder (had been exporting to the main folder containing the CP project file... obviously not a good thing). The exported scorm file is about 74MB.

3. After all the above issues with the videos were sorted, I tested the scorm export and immediately ran into a whole rang of problems. Every single object that had a fade in & out affect had to have it removed as they were greyed out. My embedded videos were barely visable, looking like they'd been set to a 20% opacity in Pshop. Could still be played though, if you could find the play button. The opening slide decided to immediately fade once the scorm pack launched, despite never setting to do anything of the sort. I had to take a copy of another slide and recreate the front slide, then delete the old one. This seems to have fixed that issue. Now my final slide (which follows on from a Quiz Result slide) has decided to do an immediate fade in & out, so you can't read the text. Again I never told it to do that. All objects on the page have effects/transitions off but this hasn't had any affect at all.

4. I have also found a very very odd pattern of behaviour with Click boxes used as links to web sites. I have 8 links on a slide (text boxes with text blue colour & click boxes overlaying). Clicking on the 1st two links works fine, opens them in a new window. Clicking on the 3rd, nothing happens. A 2nd click loads the web page. When you close it you find yourself on the next slide and have to go back. The same pattern occurs for the next 3 links. Very very odd.

5. The other really annoying problem is with my next & back buttons. If I navigate through the package and then click back a few slides (or even go back 1 slide), I can't go forward again. I have to refresh the page. I've also found if I go back to the opening slide its greys outs completely, nothings visable. Again you have to guess when the next button is to move forward. The nav buttons are simple set to "go to next slide" and ticked infinite. This problem completely ruins the who package making it unuseable.

I'm starting to think something has corrupted my project. If its not that then its CP being buggy. One thing I do know is its one of the most sluggish Adobe apps I've ever used. If I can't fix these issues the course won't be useable and I'll have to start from scratch with something else.